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Finding the Fourth Proportional to 540,685.96, 746,125.50 and 322,931.56

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Solution

The fourth proportional to 540,685.96, 746,125.50 and 322,931.56 is: 445,632.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,685.96 : 746,125.50 = 322,931.56 : x
  2. Step 2: Convert to fraction form
    540,685.96/746,125.50 = 322,931.56/x
  3. Step 3: Cross multiply
    540,685.96x = 746,125.50 × 322,931.56
  4. Step 4: Simplify right side
    540,685.96x = 240,947,471,670.78
  5. Step 5: Solve for x
    x = 240,947,471,670.78/540,685.96
  6. Step 6: Final answer
    x = 445,632.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.